Arrangement for bicycle with combined movement

Abstract

“ARRANGEMENT FOR BICYCLE WITH COMBINED MOVEMENT”, consists essentially of a bicycle ( 1 ) that takes advantage its basic original structure with some possible variations of the frame (Q) the main object of which is to exercise upper members duly supported by “iron bars” ( 2 ) and respective levers ( 3 ) that describe a cyclic oblique movement, such that this movement is transformed into rotation of the front crankset ( 6 ) by means of interconnecting rods ( 15 ) with end knuckles ( 16 ) at both ends. The rotation of the front crankset ( 6 ) is then connected by a chain ( 5 ) to the conventional powering mechanism (M) of the bicycle.

1 ) “ARRANGEMENT FOR BICYCLE WITH COMBINED MOVEMENT”, takes advantage of a conventional bicycle, that is, the frame (Q), forward ( 17 ) and aft ( 7 ) wheel, chainrings ( 20 ), chain ( 8 ) and pedal ( 4 ) without mischaracterizing the standard movement, ergonomics and geometry of this type of vehicle; characterized for presenting a handlebar (G) made up of “iron arms” ( 2 ) pivoted (α) around the supports ( 10 ), as to enable a cyclic and oblique movement; the elbow is duly held in the fore support ( 11 ) and the hands hold the respective levers ( 3 ) of the “iron arms” ( 2 ); the rotating axis of the “iron arms” ( 2 ) coincides with the elbow support ( 11 ) rotating axis (E) once the rotating bearings (R) are common; the synchrony of the movements occurs by a front crankset ( 6 ) interlinked through a chain ( 5 ) with optional stretcher/diverter ( 13 ) in the chain's inferior and/or superior section, to the powering pedal ( 4 ) of the aft ( 7 ) wheel; from the front crankset ( 6 ) orthogonal projections are derived, on the extremities of which rods ( 16 ) with knuckle joints ( 16 ) are placed, allowing for rotational movement whilst limiting translation; the “iron arms” ( 2 ) in their middle portions are allocated with the same model of joints ( 16 ); the knuckle joints ( 16 ) may be substituted by other types of joints that promote the same effect of allowing rotation and limiting translation; above the rotating point ( 18 ) and the handlebars (G) an articulated (β) stem ( 19 ) is projected, which enables the height adjustment of the called handlebar (G); the bicycle ( 1 ) powering mechanism (M) is normally positioned on the right side, however the front mechanism may be established to the left side, for such on this side there will need to be a chain rings ( 20 ), also on the front crankset ( 6 ); the “iron arm” may present a sliding device ( 21 ) on the respective axles, that promote transversal adjustment of the elbow support ( 11 ) and lever ( 3 ); the handlebar (G) rotating point ( 18 ) may present, on some location along its extension, a torsion spring ( 22 ), pins ( 23 ), locks or limiters inserted on the rotation point ( 18 ).